<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>多选框示例</title>
</head>

<body>

    <form action="/submit_form" method="post">
        <p>请选择您喜欢的编程语言（可以选择多个）：</p>

        <!-- 多选框组 -->
        <input type="checkbox" id="java" name="programmingLanguage" value="java" checked>
        <label for="java">Java</label>

        <input type="checkbox" id="python" name="programmingLanguage" value="python">
        <label for="python">Python</label>

        <input type="checkbox" id="javascript" name="programmingLanguage" value="javascript">
        <label for="javascript">JavaScript</label>

        <input type="checkbox" id="csharp" name="programmingLanguage" value="csharp">
        <label for="csharp">C#</label>

        <p><input type="submit" value="提交"></p>
    </form>

</body>

</html>